Busca Fluke Calibration

NetDAQ Networked Data Acquisition Unit

NetDAQ Data Acquisition Units give you a powerful combination of hardware and software that's ideal for small-to-medium scale process monitoring and test systems. They answer the escalating need for measurement, recording, and analysis tools that enable you to improve quality, maximize process efficiency and meet regulatory requirements. Building blocks of 20 channels can be expanded into integrated systems of up to 400 channels. Choose between two models for speed up to 1000 rps and accuracy up to 0.01%. All NetDAQs utilize Fluke's patented Universal Input Module which accepts any combination of analog input types for each of its 20 channels - without the need for external signal conditioning. Simply pre-wire the Universal Input Module to directly measure temperature, dc volts, ac volts, resistance, 4-20 mA, and frequency. (For more information refer to the Universal Input Module in this section.)

Distributed NetDAQ systems plug right into your existing networks to send data directly to a PC. This saves the cost of setting a new network and allows multiple users to simultaneously view data in real time. A NetDAQ unit can also be used as a portable dedicated system connected to a notebook computer for maintenance, product validation, research, and troubleshooting applications.

Features at a glance:

Data acquisition, up to 1,000 readings per second

20 analog input channels expandable up to 400 channels

Extensive optional plotting and trending capabilities

Optional wall, cabinet, or rack mounting

May be connected to Ethernet networks

Replaces chart recorders

System configuration
Set up your NetDAQ system the way you want it. You can set up your NetDAQ system in several different ways. Configure an isolated system, daisy-chaining as many as 20 NetDAQ units to your PC with a high-speed communication line. This is a quick, simple way to send real time data directly to a PC.

Or, add NetDAQ units directly to your company's network. Sharing the network cabling and hardware that's already installed saves you time and expense. And, if you wish, all the users on your network have an easy way to access the data you're collecting.

A third configuration option is to add an isolated NetDAQ system to your company's network. This method isolates your data acquisition application from your company's network while still providing the advantages of multi-user viewing. High-speed applications won't be slowed down by network operations, and critical applications are completely protected from network failure.

High-speed communication makes it easier to get results. No matter how you set up your data collection system, high-speed networked communication offers you a number of benefits. It gives you the ability to implement distributed applications with NetDAQ units in multiple locations. In these applications, multiple PC users can monitor data, in real time, as it is collected. Support for up to 3,000 readings per second (rps) from multiple instruments keeps throughput high. And you're ensured of highly reliable results, even over long distances.

Choose the level of performance you need
NetDAQ systems are modular and expandable up to 400 channels. With the 20-channel units as building blocks, you can buy the number of channels you need for your application. Later, add units if you need them.

Because every application is different, we offer a selection of accuracies and measurement rates to match your application needs. The 2640A offers 0.01% V dc - 0.3ºC TC accuracy and 18 bit resolution, scanning 6 - 100 channels per second. The 2645A can scan at 48 to 1000 channels per second with 16 bit resolution and 0.01% V dc - 0.6ºC TC accuracy.

All models offer a totalizer input channel which counts up to 4,294,967,295 "on/off" events. This channel is continuously sampled and is recorded with each scan of the other input channels.

Each analog and calculated channel has two user-defined alarm limits which can be independently configured as high, low, or off, and assigned to one of the eight digital I/O lines which can initiate action based on alarm conditions. Or these digital I/O lines can be used independently as inputs for contact closures, switches, or TTL levels.

Application Software
Powerful application software makes real time decisions easier. The NetDAQ Logger for Windows software makes configuring and reconfiguring your system a snap. This intuitive software plots your data graphically, so you can get right down to making decisions. With its advanced trending capabilities, you can look at real time data in context of historical data, compare multiple channels, or zoom in on a particular time span. You can also print plots directly from NetDAQ Logger. For further analysis or to generate reports, cut and paste either plots or data into word processor or spreadsheet programs. LabVIEW drivers for NetDAQ are also available from this site.

The 2640A NetDAQ can measure up to 300V at up to 100 rps. The 2645A is the first instrument of its type capable of directly measuring multiple inputs of up to 50V at 1000 readings per second. With Mx+B scaling you can convert a wide range of signals (0-10V or 4-20 mA) into standard engineering units.

Choose the packaging that suits your application
The 2640A and 2545A NetDAQ units are housed in Fluke's standard, field-tough metal case designed to resist effects of high EMI and RFI environments. Both models have a simple front panel interface with just eight buttons for local monitoring of all input measurements, and checking and setting communication parameters.

If you need your NetDAQ close at hand but out of the way, either unit can be permanently mounted on a wall, or in a rack or cabinet with optional mounting accessories.

Easy calibration
NetDAQ units are extremely stable, but when you do need to calibrate one, we've made it very easy. The optional service manual gives you simple, step by step calibration instructions. (An RS-232 interface is provided on the NetDAQ units for calibration.)

Powerful application software makes real time decisions easier.
The NetDAQ Logger for Windows software makes configuring and reconfiguring your system a snap. This intuitive software plots your data graphically, so you can get right down to making decisions. With its advanced trending capabilities, you can look at real time data in context of historical data, compare multiple channels, or zoom in on a particular time span. You can also print plots directly from NetDAQ Logger.

For further analysis or to generate reports, cut and paste either plots or data into word processor or spreadsheet programs. LabVIEW drivers for NetDAQ are also available from this site. NetDAQ's Universal Input Module lets you easily measure just about any electrical or physical parameter without changing hardware or adding external signal conditioning.

Any combination of dc voltage, ac voltage, thermocouples, current, RTD, resistance (2- or 4-wire), or frequency measurement can be connected directly to the input module.
Fluke's proprietary signal conditioning capability is built directly into the NetDAQ unit, thus eliminating the need to purchase external conditioning modules. NetDAQ's non-volatile, on-board clock time stamps data as measurements are taken ensuring proper recording regardless of network traffic levels. NetDAQ's on-board memory buffers data in the event that network traffic prevents timely delivery of data to the host PC. The 2640A and 2545A NetDAQ units are housed in Fluke's standard, field-tough metal case designed to resist effects of high EMI and RFI environments.

Both models have a simple front panel interface with just eight buttons for local monitoring of all input measurements, and checking and setting communication parameters. NetDAQ units are extremely stable, but when you do need to calibrate one, we've made it very easy. The optional service manual gives you simple, step by step calibration instructions. (An RS-232 interface is provided on the NetDAQ units for calibration.)

2640 NetDAQ

DC Volts

Range:

90 mV to 25%/300V

Resolution:

0.3 µV to 1 mV

Accuracy(3-Sigma):

0.01 %*

AC Volts

Range:

300 mV to 25%/300V

Resolution:

10 µV to 10 mV

Accuracy(3-Sigma):

0.3%*

Resistance

Range:

300Ω to 10 MΩ

Resolution:

300 mΩ to 3MΩ

Accuracy(3-Sigma):

± 0.015%

Frequency

Range:

15 Hz to 1 MHz

Resolution:

0.01 Hz to 100 Hz

Accuracy(3-Sigma):

± 0.05%

RTD (Pt 100)

Range:

-200 to 600ºC

Resolution:

0.003ºC

Accuracy:

(3-Sigma)± 0.06ºC*

J Thermocouples

Range:

-100 to 760ºC

Resolution:

0.02ºC**

Accuracy:

(3-Sigma)± 0.35ºC*

K Thermocouples

Range:

-100 to 1372ºC

Resolution:

0.02ºC**

Accuracy:

(3-Sigma)± 0.4ºC*

T Thermocouples

Range:

-100 to 400ºC

Resolution:

0.02ºC**

Accuracy:

0.3ºC *

Other Thermocouple types

R, S, B, C, E, N

*Total instrument accuracy for 90 days following calibration and ambient temperature range of 18 to 28 Degrees C. Includes A/D errors, linearization conformity, initial calibration error, isothermality errors, reference junction conformity and power line voltage effects within the range from 107V ac to 264V ac.
**Resolution is 0.02°C or 0.04°F over the useful range of base metal thermocouples (J, K, T, E, N) and 1°C or 2°F resolution for types R, S, B, and C with slow scan.

2645 NetDAQ

DC Volts

Range:

90 mV to 50V

Resolution:

3 µV to 10 mV

Accuracy:

0.01 %*

AC Volts

Range:

30V to 50mV

Resolution:

10 µV to 1 mV

Accuracy:

0.3%*

Resistance

Range:

300Ω to 3 MΩ

Resolution:

10 mΩ to 100Ω

Accuracy:

0.02 %*

Frequency

Range:

15 Hz to 1 MHz

Resolution:

0.01 Hz to 100 Hz

Accuracy:

0.05%

RTD (Pt 100)

Range:

-200 to 600ºC

Resolution:

0.03ºC

Accuracy:

0.16ºC*

J Thermocouples

Range:

-100 to 760ºC

Resolution:

0.2ºC**

Accuracy:

0.7ºC*

K Thermocouples

Range:

-100 to 1372ºC

Resolution:

0.2ºC**

Accuracy:

0.8ºC*

T Thermocouples

Range:

-100 to 400ºC

Resolution:

0.2ºC**

Accuracy:

0.7ºC*

Other Thermocouple types

R, S, B, C, E, N

*Total instrument accuracy for 90 days following calibration and ambient temperature range of 18 to 28 Degrees C. Includes A/D errors, linearization conformity, initial calibration error, isothermality errors, reference junction conformity and power line voltage effects within the range from 107V ac to 264V ac.
**Resolution is 0.2°C or 0.4°F over the useful range of base metal thermocouples (J, K, T, E, N) and 1°C or 2°F resolution for types R, S, B, and C with slow scan.

General Specifications

Channel Capacity

Analog inputs:

20

Computed channels:

10

Digital I/O & Alarm Outputs:

8 total

Totalizer:

1

Computed Channels

10 computed channels can be created by processing analog input channels and other computed channels with the following methods: Addition, subtraction, multiplication, division, log, natural log, exponent, square root, absolute value, integer function, average (average of a group of channels), difference (difference between any two channels), difference (between a channel and a group of averaged channels)